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13f22f5d59
Summary:
This patch adds a new function to lldbtest: `expect_expr`. This function is supposed to replace the current approach
of calling `expect`/`runCmd` with `expr`, `p` etc.
`expect_expr` allows evaluating expressions and matching their value/summary/type/error message without
having to do any string matching that might allow unintended passes (e.g., `self.expect("expr 3+4", substrs=["7"])`
can unexpectedly pass for results like `(Class7) $0 = 7`, `(int) $7 = 22`, `(int) $0 = 77` and so on).
This only uses the function in a few places to test and demonstrate it. I'll migrate the tests in follow up commits.
Reviewers: JDevlieghere, shafik, labath
Reviewed By: labath
Subscribers: christof, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D70314
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
"""
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Tests calling builtin functions using expression evaluation.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ExprCommandCallBuiltinFunction(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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# Builtins are expanded by Clang, so debug info shouldn't matter.
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.line = line_number(
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'main.cpp',
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'// Please test these expressions while stopped at this line:')
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def test(self):
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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interp = self.dbg.GetCommandInterpreter()
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result = lldb.SBCommandReturnObject()
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# Test different builtin functions.
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self.expect_expr("__builtin_isinf(0.0f)", result_type="int", result_value="0")
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self.expect_expr("__builtin_isnormal(0.0f)", result_type="int", result_value="0")
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self.expect_expr("__builtin_constant_p(1)", result_type="int", result_value="1")
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self.expect_expr("__builtin_abs(-14)", result_type="int", result_value="14")
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